The Riptidz headphones feature a sweat proof body and a secure fit, perfect for the active user. They meet the IPX-2 waterproof specification to Ensure That dripping moisture will not enter the earpiece. An 11mm driver unit delivers clean, clear sound, and for a custom fit the Riptidz comes with small, medium and large silicone earpieces. The headphones are offered Preferred in eight colors and have any available 3.3-foot (1 meter) cord with a gold-plated iPhone-compatible stereo plug.